CN106596646A - Mine gas detection system designed based on adjustable voltage stabilizing integrated circuit - Google Patents
Mine gas detection system designed based on adjustable voltage stabilizing integrated circuit Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a mine gas detection system designed based on an adjustable voltage stabilizing integrated circuit. The mine gas detection system is equipped with a power supply circuit, an alarm lamp circuit, a gas detection circuit, a silicon controlled circuit and an alarm circuit. The power supply circuit is internally provided with a power supply GB, an input filter circuit, an adjustable voltage stabilizing chip IC1 and an output circuit, the power supply GB is connected to the input filter circuit, the input filter circuit is connected to the adjustable voltage stabilizing chip IC1, and the adjustable voltage stabilizing chip IC1 is connected to the output circuit. The detection system provided by the invention is used for detecting gas in mines, and gives real-time alarm so as to avoid gas poisoning of staff. In terms of power supply design, the adjustable voltage stabilizing chip is utilized to carry the power supply circuit so as to supply power to to-be-fed circuits in the whole mine gas detection system, and the supplied power is voltage stabilized electric energy, accordingly the situation that the whole mine gas detection system cannot work stably because of voltage instability can be avoided, thus avoiding detection failure and safety liability accidents.
Description
Technical field
The present invention relates to the field such as coal mining, process technology, specifically, is designed based on adjustable integrated regulator
Mine gas detecting system.
Background technology
Colliery is the mankind in the region of the mining area exploitation coal resources rich in coal, is generally divided into underground mine and outdoor coal
Ore deposit.When coal seam is away from earth's surface, it is typically chosen to underground and digs tunnel digging coal, this is underground mine.When coal seam is away from earth's surface
Distance it is close when, be typically chosen, this is open coal mine.China's overwhelming majority colliery category
In underground mine.Colliery scope includes the very big region of above and below ground and related facility.Colliery is the mankind in digging rich in having
The proportional space excavated during the geological stratification of coal, generally includes tunnel, well cave and face etc..Coal is topmost solid
Fuel, is one kind of kaustobilite.It is the plant in great numbers grown by certain geological epoch, in suitable geological environment
In, thick-layer is gradually piled into, and is buried in the bottom or silt, formed through very long geochronic geochronic natural incoalation
's.In the world in Various Geolcgical Ages, it is important with producing coal in the stratum in the Carboniferous Period, the Permian Period, Jurassic Period and the Tertiary Period at most
Coal-forming age.The phosphorus content of coal generally 46～97%, it is brown to black, with dimness to metallic luster.According to coalification
The difference of degree, coal can be divided into peat, brown coal, four class of bituminous coal and anthracite.
Strip mining transformation is when coal seam is close to earth's surface, relatively inexpensive using opencast mode.Soil above coal seam is referred to as
Table soil.Explosive is buried in still undeveloped table soil zone, the equipment such as bagger, excavator, truck is then used by and is removed table soil.This
In the pit that a little table soil have been exploited before being then received in.After table soil mud is removed, coal seam will be come out；At this moment by coal cinder bore it is broken or
Scrap, coal is transported to coal preparation plant using truck and be further processed.Opencast mode is obtained than the mode of underground mining
The colliery of large ratio is obtained, because more mining area is utilized.Strip mining transformation colliery can cover several square kilometres of area.Generation
The coal production of boundary treaty 40% uses strip mining transformation mode.
Underground mining major part coal seam is away from earth's surface, therefore cannot use opencast mode.Underground mining accounts for generation
The 60% of boundary's coal production.In pit, room-and-pillar method is usually used and advances in coal seam, beam column is used for supporting pit.Have four kinds
Main underground mining method：
Broadwall, is about more than 300 meters of face, and an accurate coal-winning machine is moved left and right in heading.
The coal of loosening is fallen in drag conveyor, and removes work surface.
It is continuous to exploit, coal is scraped from coal seam using a machine for having tungsten bur.In " room-and-pillar method " system
Operation, works in a series of about 10 meters of room area.
Blasting excavation, traditional mining type, smashes coal seam using explosive, coal cinder is collected and is placed on mine car or conveyer belt
In.
Short-walling, using the machine of continuous exploitation, similar broadwall has moveable hole top support.
The content of the invention
It is an object of the invention to provide adjustable integrated regulator projected mine Measuring System of Gas is based on, for right
Gas in mine is detected, and carries out Realtime Alerts, it is to avoid staff's gas poisoning, and on power-supply service, utilizing can
Voltage stabilizing chip is adjusted to carry out carrying power supply circuits so as to can be to be powered to whole mine gas detecting system in adjustable scope
Circuit is powered, and supplied electric energy is voltage stabilizing electric energy, can avoid causing whole mine gas due to spread of voltage
Detecting system is unable to the situation of steady operation to be occurred, and then avoids the occurrence of detection failure, the situation that safety responsibility accident occurs.
The present invention is achieved through the following technical solutions：Based on adjustable integrated regulator projected mine gas management system
System, is provided with power supply circuits, warning circuit for lamp, gas management circuit, ghyristor circuit and warning circuit, the power supply circuits point
Be not connected with warning circuit for lamp, gas management circuit and warning circuit, warning circuit for lamp respectively with gas management circuit and warning
Circuit is connected, and ghyristor circuit is connected with gas management circuit and warning circuit respectively；Arrange in the power supply circuits
There are power supply GB, input filter circuit, adjustable voltage stabilizing chip IC1 and output circuit, power supply GB connection input filter circuits, input filter
Wave circuit connects adjustable voltage stabilizing chip IC1, and adjustable voltage stabilizing chip IC1 connects output circuit, is provided with the output circuit
Stabilivolt Z1, resistance R4, resistance R5, resistance R6, resistance R7, inductance L2 and electric capacity C4, the 4 feet difference of adjustable voltage stabilizing chip IC1
It is connected with the first end of the first end and resistance R5 of resistance R4, non-second ends of resistance R4 and resistance R5 connect altogether and with electric capacity C4's
First end is connected, and the first end of electric capacity C4 connects 2 feet of adjustable voltage stabilizing chip IC1 by inductance L2, and stabilivolt Z1 is connected to
Between 2 feet and 3 feet of adjustable voltage stabilizing chip IC1, the first end of electric capacity C4 connects the first end of resistance R6, second end of resistance R6
It is connected with the second end of the first end and resistance R4 of resistance R7 respectively, second end of resistance R7 the second end respectively with electric capacity C4
And 3 feet of adjustable voltage stabilizing chip IC1 are connected and are grounded.
Further is that the present invention is better achieved, especially using following setting structures：In the gas management circuit
Gas sensor IC2 and resistance R1 is provided with, second end of the resistance R1 is connected to the heater chain of gas sensor IC2
On, and the first end of resistance R1 respectively with warning circuit for lamp, warning circuit, the first end of electric capacity C4 and gas sensor IC2
First detection pole is connected；The second detection pole of gas sensor IC2 is connected with ghyristor circuit, and gas sensor IC2
The non-resistive R1 connection end of heater chain be connected with second end of electric capacity C4.
Further is that the present invention is better achieved, especially using following setting structures：In the input filter circuit
Inductance L1, electric capacity C1, electric capacity C2 and electric capacity C3 are provided with, the electric capacity C1, electric capacity C2 and electric capacity C3 are parallel with one another, and after parallel connection
Electric capacity C1, electric capacity C2 and electric capacity C3 be connected with 1 foot and 3 feet of adjustable voltage stabilizing chip IC1 respectively, one end of the inductance L1
Connect 1 foot of adjustable voltage stabilizing chip IC1, and the other end of inductance L1 is connected with the positive terminal of power supply GB, the negative pole of power supply GB
End ground connection.
Further is that the present invention is better achieved, especially using following setting structures：In adjustable voltage stabilizing chip IC1
On be additionally provided with potentiometer W2, and 5 feet of adjustable voltage stabilizing chip IC1 are grounded by potentiometer W2；The positive pole of the stabilivolt Z1
Ground connection.
Further is that the present invention is better achieved, especially using following setting structures：Set in the warning circuit for lamp
The lamp EH and switch S1 being serially connected is equipped with, and one end of the warning circuit for lamp after connecting is connected with the first end of electric capacity C4,
The other end of the warning circuit for lamp after series connection is connected with the first end of electric capacity C4.
Further is that the present invention is better achieved, especially using following setting structures：Set in the ghyristor circuit
Be equipped with potentiometer W1 and controllable silicon VS, two fixing ends of potentiometer W1 respectively with the second detection pole of gas sensor IC2 and
Second end of electric capacity C4 is connected, and the adjustable end of potentiometer W1 is connected with the control pole of controllable silicon VS, the negative electrode of controllable silicon VS
Second end of connection electric capacity C4, the anode connection warning circuit of controllable silicon VS.
Further is that the present invention is better achieved, especially using following setting structures：Arrange in the warning circuit
There are integrated chip IC3, resistance R2, speaker BL, transistor Q1 and electric capacity C5, the VDD feet and SEL1 feet of integrated chip IC3
All it is connected with the first end of electric capacity C4, the OSC1 feet of integrated chip IC3 pass through the OSC2 foot phases of resistance R2 and integrated chip IC3
Connection, the second end of the VSS feet of integrated chip IC3 anode, the emitter stage of transistor Q1 and electric capacity C5 respectively with controllable silicon VS
It is connected, the OUT feet of integrated chip IC3 connect the base stage of transistor Q1, the of the colelctor electrode connection speaker BL of transistor Q1
Two ends, the first end of speaker BL are connected with the VDD feet of the first end and integrated chip IC3 of electric capacity C5 respectively.
Further is that the present invention is better achieved, especially using following setting structures：The electric capacity C5 is using electrolysis electricity
Hold, and the positive pole of electric capacity C5 connects the first end of speaker BL.
Further is that the present invention is better achieved, especially using following setting structures：Integrated chip IC3 is adopted
KD9561 type four tones of standard Chinese pronunciation simulation sound effect integrated circuits.
Further is that the present invention is better achieved, especially using following setting structures：Voltage stabilizing chip IC1 is selected
LM2596 switching mode integrated voltage-stabilized chip chips, the gas sensor IC2 adopt QM-N5 type gas sensitive devices.
The present invention compared with prior art, with advantages below and beneficial effect：
The present invention is for detecting to the gas in mine, and carries out Realtime Alerts, it is to avoid staff's gas poisoning,
On power-supply service, carrying power supply circuits are carried out using adjustable voltage stabilizing chip so as to can be in adjustable scope to whole ore deposit
Well Measuring System of Gas circuit to be powered is powered, and supplied electric energy is voltage stabilizing electric energy, can be avoided due to voltage instability
Determine and whole mine gas detecting system is occurred from the situation of steady operation, and then avoid the occurrence of detection failure, occur
The situation of safety responsibility accident.
The present invention carries out gas gas detecting in mine using ripe gas sensor, so as to by surveyed data to follow-up
Circuit is fed back, and is processed, to carry out Realtime Alerts.
The present invention is designed based on adjustable voltage stabilizing chip, direct current output can further utilize adjustable voltage stabilizing chip be core
The power supply circuits that electrocardio road is built carry out voltage stabilizing output, so that whole mine gas detecting system is capable of the fortune of safety and stability
OK, it is to avoid the use of whole mine gas detecting system is affected due to fluctuation of service.
Description of the drawings
Fig. 1 is mine gas detecting system circuit diagram of the present invention.
Fig. 2 power supply circuits shown in the present invention.
Specific embodiment
The present invention is described in further detail with reference to embodiment, but embodiments of the present invention not limited to this.
It should be noted that in the practical application of the present invention, being inevitably applied to software program, but applicant
It is hereby stated that, the software program applied in the specific implementation by the technical scheme is all prior art, in this application, is not related to
To the change and protection of software program, the simply protection of the hardware structure to designing to realize goal of the invention.
Embodiment 1：
Based on adjustable integrated regulator projected mine Measuring System of Gas, for examining to the gas in mine
Survey, and carry out Realtime Alerts, it is to avoid staff's gas poisoning, on power-supply service, carried using adjustable voltage stabilizing chip
Power supply circuits so as to whole mine gas detecting system circuit to be powered can be powered in adjustable scope, and
Supplied electric energy is voltage stabilizing electric energy, can avoid causing whole mine gas detecting system from stablizing work due to spread of voltage
The situation of work occurs, and then avoids the occurrence of detection failure, the situation that safety responsibility accident occurs, and as shown in Figure 1 and Figure 2, especially adopts
Use following setting structures：It is provided with power supply circuits, warning circuit for lamp, gas management circuit, ghyristor circuit and warning circuit, institute
State power supply circuits to be connected with warning circuit for lamp, gas management circuit and warning circuit respectively, warning circuit for lamp is examined with gas respectively
Slowdown monitoring circuit and warning circuit are connected, and ghyristor circuit is connected with gas management circuit and warning circuit respectively；In the confession
Power supply GB, input filter circuit, adjustable voltage stabilizing chip IC1 and output circuit, power supply GB connection input filters are provided with circuit
Wave circuit, input filter circuit connect adjustable voltage stabilizing chip IC1, and adjustable voltage stabilizing chip IC1 connects output circuit, in the output
Stabilivolt Z1, resistance R4, resistance R5, resistance R6, resistance R7, inductance L2 and electric capacity C4, adjustable voltage stabilizing chip are provided with circuit
4 feet of IC1 are connected with the first end of the first end and resistance R5 of resistance R4 respectively, and resistance R4 and resistance R5 is non-, and second end connects altogether
And be connected with the first end of electric capacity C4, the first end of electric capacity C4 connects 2 feet of adjustable voltage stabilizing chip IC1 by inductance L2, surely
Pressure pipe Z1 is connected between 2 feet of adjustable voltage stabilizing chip IC1 and 3 feet, and the first end of electric capacity C4 connects the first end of resistance R6, electricity
Second end of resistance R6 is connected with the second end of the first end and resistance R4 of resistance R7 respectively, second end of resistance R7 respectively with electricity
3 feet at the second end and adjustable voltage stabilizing chip IC1 that hold C4 are connected and are grounded.
Embodiment 2：
The present embodiment is further optimized on the basis of above-described embodiment, further for the present invention is better achieved,
As shown in Figure 1 and Figure 2, especially using following setting structures：Be provided with the gas management circuit gas sensor IC2 and
Resistance R1, second end of the resistance R1 are connected on the heater chain of gas sensor IC2, and the first end difference of resistance R1
It is connected with the first detection pole of warning circuit for lamp, warning circuit, the first end of electric capacity C4 and gas sensor IC2；Air-sensitive is passed
The second detection pole of sensor IC2 is connected with ghyristor circuit, and the non-resistive R1 connection of the heater chain of gas sensor IC2
End is connected with second end of electric capacity C4.
Embodiment 3：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this is better achieved
It is bright, as shown in Figure 1 and Figure 2, especially using following setting structures：Inductance L1, electric capacity are provided with the input filter circuit
C1, electric capacity C2 and electric capacity C3, the electric capacity C1, electric capacity C2 and electric capacity C3 are parallel with one another, and the electric capacity C1 after parallel connection, electric capacity C2 and
Electric capacity C3 is connected with 1 foot and 3 feet of adjustable voltage stabilizing chip IC1 respectively, and one end of the inductance L1 connects adjustable voltage stabilizing chip
1 foot of IC1, and the other end of inductance L1 is connected with the positive terminal of power supply GB, the negative pole end ground connection of power supply GB.
Embodiment 4：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this is better achieved
It is bright, as shown in Figure 1 and Figure 2, especially using following setting structures：Potentiometer is additionally provided with adjustable voltage stabilizing chip IC1
W2, and 5 feet of adjustable voltage stabilizing chip IC1 are grounded by potentiometer W2；The plus earth of the stabilivolt Z1.
Embodiment 5：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this is better achieved
It is bright, as shown in Figure 1 and Figure 2, especially using following setting structures：The lamp EH being serially connected is provided with the warning circuit for lamp
And S1 is switched, and one end of the warning circuit for lamp after connecting is connected with the first end of electric capacity C4, the warning circuit for lamp after series connection
The other end be connected with the first end of electric capacity C4.
Embodiment 6：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this is better achieved
It is bright, as shown in Figure 1 and Figure 2, especially using following setting structures：Potentiometer W1 and controllable is provided with the ghyristor circuit
Two fixing ends of silicon VS, potentiometer W1 are connected with the second detection pole of gas sensor IC2 and second end of electric capacity C4 respectively
Connect, the adjustable end of potentiometer W1 is connected with the control pole of controllable silicon VS, the negative electrode of controllable silicon VS connects second end of electric capacity C4,
The anode connection warning circuit of controllable silicon VS.
Embodiment 7：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this is better achieved
It is bright, as shown in Figure 1 and Figure 2, especially using following setting structures：Integrated chip IC3, resistance are provided with the warning circuit
R2, speaker BL, transistor Q1 and electric capacity C5, the first end of the VDD feet and SEL1 feet of integrated chip IC3 all with electric capacity C4
It is connected, the OSC1 feet of integrated chip IC3 are connected with the OSC2 feet of integrated chip IC3 by resistance R2, integrated chip IC3
Second end of VSS feet anode, the emitter stage of transistor Q1 and electric capacity C5 respectively with controllable silicon VS is connected, integrated chip IC3
OUT feet connect the base stage of transistor Q1, the colelctor electrode of transistor Q1 connects second end of speaker BL, the first of speaker BL
End is connected with the VDD feet of the first end and integrated chip IC3 of electric capacity C5 respectively.
Embodiment 8：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this is better achieved
It is bright, as shown in Figure 1 and Figure 2, especially using following setting structures：The electric capacity C5 adopts electrochemical capacitor, and the positive pole of electric capacity C5 to connect
Connect the first end of speaker BL.
Embodiment 9：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this is better achieved
It is bright, as shown in Figure 1 and Figure 2, especially using following setting structures：Integrated chip IC3 adopts KD9561 type four tones of standard Chinese pronunciation simulation sound effects
Integrated circuit.
Embodiment 10：
The present embodiment is further optimized on the basis of any of the above-described embodiment, and further is that this is better achieved
It is bright, as shown in Figure 1 and Figure 2, especially using following setting structures：Voltage stabilizing chip IC1 selects LM2596 switching mode integrated voltage-stabilizeds
Microarray biochip, the gas sensor IC2 adopt QM-N5 type gas sensitive devices.
When design is used, the first detection pole of gas sensor IC2 is connected with the first end of electric capacity C4, gas sensor
The second detection pole of IC2 is connected with first fixing end of potentiometer W1, one end connection of the heater chain of gas sensor IC2
Resistance R1, the other end of the heater chain of gas sensor IC2 connect the negative electrode of controllable silicon VS, and power supply GB is preferably electric with 5V
Pond, when gas density is less than the safety criterion for limiting in the mine, the conductivity between the detection pole of gas sensor is relatively low, inspection
The potentiometer W1 connection ends for surveying pole are low level, do cut-off state integrated chip IC3 and do not work at controllable silicon VS, and speaker BL is not
Sounding.
When in mine, gas gas concentration exceedes the safety criterion for limiting, the detection interpolar of gas sensor IC2 is conductive
Rate increases, and makes the potentiometer W1 of detection pole connect terminal voltage and rises, and controllable silicon VS is triggered and turned on, and integrated chip IC3 is powered
Work, Jing after transistor Q1 amplifications, drive the speaker BL sends chimes of doom to the audio signal of telecommunication of its output.
When in use, can pass through to adjust the resistance of potentiometer W1, change the sensitivity of warning circuit.
The above, is only presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention, it is every according to
According to the present invention technical spirit above example is made any simple modification, equivalent variations, each fall within the present invention protection
Within the scope of.
Claims (10)
1. adjustable integrated regulator projected mine Measuring System of Gas is based on, it is characterised in that：It is provided with power supply circuits, report
Warning lamp circuit, gas management circuit, ghyristor circuit and warning circuit, the power supply circuits respectively with warning circuit for lamp, gas
Detection circuit and warning circuit are connected, and warning circuit for lamp is connected with gas management circuit and warning circuit respectively, controllable silicon electricity
Road is connected with gas management circuit and warning circuit respectively；Power supply GB, input filter electricity are provided with the power supply circuits
Road, adjustable voltage stabilizing chip IC1 and output circuit, power supply GB connection input filter circuits, input filter circuit connect adjustable voltage stabilizing
Chip IC 1, adjustable voltage stabilizing chip IC1 connect output circuit, and stabilivolt Z1, resistance R4, electricity are provided with the output circuit
Resistance R5, resistance R6, resistance R7, inductance L2 and electric capacity C4,4 feet of adjustable voltage stabilizing chip IC1 respectively with the first end of resistance R4 and
The first end of resistance R5 is connected, and non-second ends of resistance R4 and resistance R5 are connect altogether and are connected with the first end of electric capacity C4, electric capacity
The first end of C4 connects 2 feet of adjustable voltage stabilizing chip IC1 by inductance L2, and stabilivolt Z1 is connected to the 2 of adjustable voltage stabilizing chip IC1
Between foot and 3 feet, the first end of electric capacity C4 connects the first end of resistance R6, second end of resistance R6 respectively with resistance R7 first
End is connected with second end of resistance R4, second end of resistance R7 the second end and adjustable voltage stabilizing chip IC1 respectively with electric capacity C4
3 feet be connected and be grounded.
2. according to claim 1 based on adjustable integrated regulator projected mine Measuring System of Gas, its feature exists
In：Gas sensor IC2 and resistance R1 is provided with the gas management circuit, second end of the resistance R1 is connected to gas
On the heater chain of dependent sensor IC2, and the first end of resistance R1 respectively with warning circuit for lamp, warning circuit, electric capacity C4
The first detection pole of one end and gas sensor IC2 is connected；The second detection pole of gas sensor IC2 and ghyristor circuit phase
Connect, and the non-resistive R1 connection end of the heater chain of gas sensor IC2 is connected with second end of electric capacity C4.
3. according to claim 2 based on adjustable integrated regulator projected mine Measuring System of Gas, its feature exists
In：Be provided with inductance L1, electric capacity C1, electric capacity C2 and electric capacity C3 in the input filter circuit, the electric capacity C1, electric capacity C2 and
Electric capacity C3 is parallel with one another, and the electric capacity C1 after parallel connection, electric capacity C2 and electric capacity C3 1 foot and 3 feet respectively with adjustable voltage stabilizing chip IC1
It is connected, one end of the inductance L1 connects 1 foot of adjustable voltage stabilizing chip IC1, and the other end of inductance L1 is with power supply GB just
Extremely it is connected, the negative pole end ground connection of power supply GB.
4. according to claim 3 based on adjustable integrated regulator projected mine Measuring System of Gas, its feature exists
In：Potentiometer W2 is additionally provided with adjustable voltage stabilizing chip IC1, and 5 feet of adjustable voltage stabilizing chip IC1 pass through potentiometer W2
Ground connection；The plus earth of the stabilivolt Z1.
5. according to claim 4 based on adjustable integrated regulator projected mine Measuring System of Gas, its feature exists
In：The lamp EH and switch S1 being serially connected, and one end of the warning circuit for lamp after connecting are provided with the warning circuit for lamp
It is connected with the first end of electric capacity C4, the other end of the warning circuit for lamp after series connection is connected with the first end of electric capacity C4.
6. according to claim 5 based on adjustable integrated regulator projected mine Measuring System of Gas, its feature exists
In：Be provided with potentiometer W1 and controllable silicon VS in the ghyristor circuit, two fixing ends of potentiometer W1 respectively with air-sensitive
Second detection pole of sensor IC 2 and second end of electric capacity C4 are connected, the adjustable end of potentiometer W1 and the control of controllable silicon VS
Pole is connected, and the negative electrode of controllable silicon VS connects second end of electric capacity C4, the anode connection warning circuit of controllable silicon VS.
7. according to claim 6 based on adjustable integrated regulator projected mine Measuring System of Gas, its feature exists
In：Integrated chip IC3, resistance R2, speaker BL, transistor Q1 and electric capacity C5, the collection are provided with the warning circuit
VDD feet and SEL1 feet into chip IC 3 is all connected with the first end of electric capacity C4, and the OSC1 feet of integrated chip IC3 pass through resistance
R2 is connected with the OSC2 feet of integrated chip IC3, the VSS feet of integrated chip IC3 anode respectively with controllable silicon VS, transistor Q1
Emitter stage and second end of electric capacity C5 be connected, the OUT feet of integrated chip IC3 connect the base stage of transistor Q1, transistor Q1
Colelctor electrode connect second end of speaker BL, the first end of speaker BL first end and integrated chip respectively with electric capacity C5
The VDD feet of IC3 are connected.
8. according to claim 7 based on adjustable integrated regulator projected mine Measuring System of Gas, its feature exists
In：The electric capacity C5 adopts electrochemical capacitor, and the positive pole of electric capacity C5 connects the first end of speaker BL.
9. according to claim 7 or 8 based on adjustable integrated regulator projected mine Measuring System of Gas, its feature
It is：Integrated chip IC3 adopts KD9561 type four tones of standard Chinese pronunciation simulation sound effect integrated circuits.
10. according to any one of claim 2-8 based on adjustable integrated regulator projected mine Measuring System of Gas,
It is characterized in that：Voltage stabilizing chip IC1 selects LM2596 switching mode integrated voltage-stabilized chip chips, the gas sensor IC2
Using QM-N5 type gas sensitive devices.
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| CN201611214945.9A CN106596646A (en) | 2016-12-26 | 2016-12-26 | Mine gas detection system designed based on adjustable voltage stabilizing integrated circuit |
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| CN201611214945.9A CN106596646A (en) | 2016-12-26 | 2016-12-26 | Mine gas detection system designed based on adjustable voltage stabilizing integrated circuit |
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Application publication date: 20170426 |